VF294H1155.52M中文资料

Surface Mount VCXO

ECM Electronics Limited, Penmaen House, Ashington, West Sussex, RH20 3JR, UK

Tel: +44(0)1903 892810: Fax: +44(0)1903 892738. Email: ecm@https://www.wendangku.net/doc/277292041.html,

Although we have attempted to accurately reflect the products we market. ECM reserve the right without prior notice to

discontinue any product or make design changes we believe necessary.

Issue 1

ECM VF194 / 294

Parameter

VF194 – VF294 Notes Frequency Range 1.54MHz to 160.0MHz

Stability

+/-25ppm Vs. Temp Supply Voltage 5V +/-5% 3.3V +/-5% Standard Option Supply Current 30mA No Load

Load

10TTL gates or 50pF Duty Cycle

40 / 60 or 45/55 Specify

Rise & Fall Times 6nS max Logic “1” Level 0.9Vcc min Max Load Logic “0” Level 0.1Vcc max Max Load Start Up Time 10mS max 2mS Typ Phase Jitter 1pS max 20pS max <52MHz >52MHz Modulation BW 10kHz @ -3dB min Input Impedance 50K ohm min Fm<10kHz Control Voltage

0V to 5.0V 0V to 3.3V Vcc 5.0V Vcc 3.3V Pulling Range +/- 50ppm Or Specify Linearity

+/-20% Setability (Vc for center frequency) 2.50V typ 1.65V typ Vcc 5.0V Vcc 3.3V

Tristate Fuction Input HIGH (>2.5V) or floating: ACTIVE Input LOW (<0.5V): INFINITE IMPEDANCE

Enable Disable 100ns max Operating Temp

00C to +700C -450C to +850

C Available Standard Option

Part Numbering VF194 /294 S H L 1 50 155.52M Type

Stability S = 20ppm Blank = Std Duty Cycle H = 45/55 Blank = 46/60 Supply Voltage L = 3.3V Blank = 5.0

Temperature Range 1 = -400C to +850

C Blank = Standard

Pulling Range Blank = Std or specify Frequency

§ Very Low Phase Jitter

§ Industrial Temperature Range § Miniature Ceramic Package § SMD Tri-state Oscillator § 3.3V Supply

Pin (VF194) 1 2 3 Connection Vc N/C GND Pin (VF194) 6 5 4 Connection O/P Tri Vcc

Pin (VF294) 1 2 3 Connection Vc Tri GND Pin (VF294) 6 5 4 Connection

Vcc N/C

O/P

A B C D E F G 7.7

5.2

2.3

1.14

5.08 1.27

3.93

Dimensions in mm

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